The Wireless Microphone System features a unidirectional pickup pattern and operates on Uhf frequencies with an Lcd display for easy monitoring. It offers signal stability at 541.9MHz, 546.3MHz, 561.6MHz, and 568.65MHz. Powered by Aa batteries, it has a range of up to 492 ft (150M). The system includes Xlr and 6.35mm jack connectors, a durable metal build, and a sensitivity of -96dBm. With a frequency range of 500MHz-980MHz, 48KHz audio sampling, and a signal-to-noise ratio >96dB, it delivers high-quality sound.Specifications:Antenna : Bnc/50OHarmonic interference ratio : >80dBFalse interference ratio : >70dBPower consumption : =2WAudio output : F6.35 socket mixed unbalanced output XLRPower : DC12V/500mACompatible Device : Pa System, Audio Mixer, Amplifier, Karaoke Machine, SpeakerPackage :1x 4 Channel Uhf wireless receiver4x Handheld wireless microphone2x Antennas1x Power adapter1x Audio cable1x User Manual4x Anti-rolling rings8x Aa batteries for long hour operation